x402 API activity stats — top endpoints by paid calls, trend data, and unique payer counts from memoryapi.org nginx logs.

Curated reading list on QE for tutoring agents, quiz generators, and reading apps — 168 public-domain books (e.g. A Study of Recent Earthquakes, The chemistry, properties and tests of precious stones, Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings). Full-text retrieval with drill-down routes for chapters, quotes, and citations. No license, no API key required.

Locus public pay-per-use API

Returns MetaLend API services directory with a one-line summary of each RebalancerResource endpoint plus links to API docs.

Solana epoch progress — Genesis402 / UnyKorn Operator Network

Recent per-block aggregation of Bittensor events: neuron_registrations, weight_sets, bond_sets, child_key_sets, stake_added/removed, root_claimed, balance_transfers + total TAO.

Bitcoin mempool pressure classification (low/medium/high/extreme) + fee buckets (0-1, 1-2, 2-5, 5-10, 10-20, 20-50, 50-100, 100-200, 200+ sat/vB) + RBF count + CPFP candidate count. Updated every 5 min.

Use when an agent needs to read web pages: returns each page's main content as clean markdown (Readability + Turndown) with title, byline and word count. $0.002 per URL; pass up to 10 comma-separated URLs in 'urls' for one batched call. Not charged if every URL fails.

Canonical JSON and its digest — Genesis402 / UnyKorn Operator Network

Xynaptic Crypto Whales — live large Bitcoin transfers straight from the network: biggest mempool transactions and recent block flows, sorted by value (BTC + USD). Spot accumulation/distribution in real-time. GET ?min_btc=10 (&limit=10).

Live token prices.

Convert an amount between currencies at current ECB rate. Returns input amount, target amount, rate, date. Use ?amount=100 and from=USD and to=EUR. Built for AI agents quoting prices in multiple currencies. Accepts payment on Base or Solana — either network works.

UK flood risk by postcode (Environment Agency).

Current Bitcoin block height — Genesis402 / UnyKorn Operator Network

UK council tax bands A–H by postcode.

全球央行政策利率：38国央行当前政策利率（美联储/欧央行/日央行/英央行/PBoC等），来自BIS官方数据，归一化JSON。含利率值/生效日/来源央行。可按国家筛选。Global central bank policy rates from BIS official data — Fed/ECB/BoJ/BoE/PBoC and 33 more, normalized. For FX carry trades, macro analysis, rate differential signals. Accepts payment on Base or Solana — either network works.

APEX Runner: Regime Transition Signal

APEX Runner: Btc Dominance Signal

APEX Runner: Liquidation Magnet Signal

PII sanitization for AI agents